Cisco 642-997 Online Practice Questions and Exam Preparation

Cisco 642-997 Online Questions & Answers

• Question 1:

  Which three options are capabilities of the Cisco Nexus 7000 Series Switch? (Choose three.)

  A. All interface and supervisor modules are accessible from the front.
  B. All interface and supervisor modules are accessible from the rear.
  C. single power supply only
  D. multiple power supply option for redundancy
  E. up to 180.7 Tbps forwarding capacity with Fabric-2 modules with 10-slot switches
  F. up to 18.7 Tbps forwarding capacity with Fabric-2 modules with 18-slot switches
  A. All interface and supervisor modules are accessible from the front.
  D. multiple power supply option for redundancy
  F. up to 18.7 Tbps forwarding capacity with Fabric-2 modules with 18-slot switches

• Question 2:

  Which two items are services that are provided by Cisco Fabric Services? (Choose two.)

  A. device alias distribution
  B. VLAN database distribution
  C. Kerberos proxy distribution
  D. RSA key pair distribution
  E. DPVM configuration distribution
  A. device alias distribution
  E. DPVM configuration distribution

  ---

  explanation:

  The device alias application uses the Cisco Fabric Services (CFS) infrastructure to enable efficient database management and distribution. Device aliases use the coordinated distribution mode and the fabric-wide distribution scope. DPVM

  can use CFS to distribute the database to all switches in the fabric. This allows devices to move anywhere and keep the same VSAN membership. You should enable CFS distribution on all switches in the fabric. Using the CFS infrastructure,

  each DPVM server learns the DPVM database from each of its neighboring switches during the ISL bring-up process. If you change the database locally, the DPVM server notifies its neighboring switches, and that database is updated by all

  switches in the fabric.

  Reference:

  http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/configuration/guid e/cli/CLIConfigurationGuide/ddas.html and

  http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx- os/san_switching/configuration/guide/b_Cisco_Nexus_7000_NX- OS_SAN_Switching_Configuration_Guide/Cisco_Nexus_7000_NXOS_SAN_Switching_Configuration_Guide_chapter4.html#concept_2B83E16506C845B39 BDF96F9CAFFAEC3

• Question 3:

  Which four statements about reserved VLANs in Cisco NX-OS are true? (Choose four.)

  A. The range of reserved VLANs cannot be changed.
  B. The number of reserved VLANs is 96.
  C. A change to the range of reserved VLANs can be performed only in the VDC default.
  D. A write-erase procedure restores the default reserved VLAN range.
  E. The number of reserved VLANs is 128.
  F. A reload is needed for changes to take place.
  G. The configuration must be saved for changes to take place.
  C. A change to the range of reserved VLANs can be performed only in the VDC default.
  E. The number of reserved VLANs is 128.
  F. A reload is needed for changes to take place.
  G. The configuration must be saved for changes to take place.

• Question 4:

  Which feature allows routing protocols to remain in the data path during a supervisor failover?

  A. Cisco Nonstop Forwarding
  B. Cisco Stateful Switchover
  C. Cisco Express Forwarding
  D. Cisco Route Processor Redundancy
  A. Cisco Nonstop Forwarding

• Question 5:

  Which three parameters can be set when configuring a Cisco MDS 9000 Series Switch to use a TACACS+ server? (Choose three.)

  A. group-size
  B. deadtime
  C. timeout
  D. keep-alive
  E. retransmit
  B. deadtime
  C. timeout
  E. retransmit

• Question 6:

  Which two statements about SAN zoning on Cisco Nexus switches are true? (Choose two.)

  A. Zoning is enforced by examining the destination ID field.
  B. Devices can only belong to one zone.
  C. Only one zone set can be activated at any time.
  D. A zone can only be a member one zone set.
  E. Zoning must be administered from the primary SAN switch in the fabric.
  F. Zone configuration changes are nondisruptive.
  C. Only one zone set can be activated at any time.
  F. Zone configuration changes are nondisruptive.

  ---

  explanation:

  A zone set can be activated or deactivated as a single entity across all switches in the fabric. Only one zone set can be activated at any time. If zoning is not activated, all devices are members of the default zone. If zoning is activated, any device that is not in an active zone (a zone that is part of an active zone set) is a member of the default zone. Zoning can be administered from any switch in the fabric. When you activate a zone (from any switch), all switches in the fabric receive the active zone set. Additionally, full zone sets are distributed to all switches in the fabric, if this feature is enabled in the source switch. Reference: http://www.cisco.com/en/US/docs/storage/san_switches/mds9000/sw/san- os/quick/ guide/qcg_zones.html

• Question 7:

  What configuration is required when implementing FCoE?

  A. disable LAN traffic on the interface
  B. configure PortFast on the access port
  C. permit all VLANs on the interface
  D. permit all VSANs on the interface
  A. disable LAN traffic on the interface

  ---

  explanation:

  DCBX allows the switch to send a LAN Logical Link Status (LLS) message to a directly- connected CNA. Enter the shutdown lan command to send an LLS-Down message to the CNA. This command causes all VLANs on the interface that are not enabled for FCoE to be brought down. If a VLAN on the interface is enabled for FCoE, it continues to carry SAN traffic without any interruption.

  Reference: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/fcoe/b_Cisco_Ne xus_5000_Series_NXOS_Fibre_Channel_over_Ethernet_Configuration_Guide_/Cisco_Nexus_5000_Series_NX- OS_Fibre_Channel_over_Ethernet_Configuration_Guide__chapter3.html

• Question 8:

  Which three options are CallHome predefined destination profiles that are supported on Cisco NX-OS? (Choose three.)

  A. CiscoTAC-1
  B. full-text-destination
  C. pager-xml-destination
  D. short-text-destination
  E. xml-text-destination
  F. pager-json-destination
  A. CiscoTAC-1
  B. full-text-destination
  D. short-text-destination

• Question 9:

  In Cisco Nexus 7000 Series Switches, which three statements about SPAN are true? (Choose three.)

  A. SPAN source ports can be the in-band interface to the supervisor engine control plane of the switch.
  B. SPAN monitor ports can be routed ports.
  C. SPAN destination ports can be configured in only one SPAN session at a time.
  D. The Cisco Nexus 7000 supports virtual SPAN feature.
  E. SPAN destination port actively participates in spanning-tree instance.
  F. SPAN destinations cannot be an RSPAN VLAN.
  A. SPAN source ports can be the in-band interface to the supervisor engine control plane of the switch.
  C. SPAN destination ports can be configured in only one SPAN session at a time.
  D. The Cisco Nexus 7000 supports virtual SPAN feature.

• Question 10:

  

  What is the status of FCoE license on Cisco Nexus 5548 switch?

  A. FCoE license is not installed
  B. FCoE license is installed, but it is expired
  C. FCoE license is installed and status is enabled
  D. FCoE license does not need to be installed because it is part of ENTERPRISE_PKG
  A. FCoE license is not installed